Linux certification guide: RHEL5.0 build a DNS server

Experiment environment: VM6.0, RHEL5.0, local YUM source environment is to put MAIL, WWW and other servers together with the DNS server-first check that the system is installed with bind. rpm and caching-nameserver.rpm package [root@www.linuxidc.com ~] # Rpm-qabind * caching-* bind-chroot-9.3.3-7.el5bind-libs-9.3.3-7.el5bi lab environment: VM 6.0, RHEL5.0, local YUM Source
In this environment, servers such as MAIL and WWW are put together with DNS servers.
-First check that the system is installed with the bind. rpm and caching-nameserver.rpm package
Root@www.linuxidc.com ~ # Rpm-qa bind * caching -*
Bind-chroot-9.3.3-7.el5
Bind-libs-9.3.3-7.el5
Bind-9.3.3-7.el5
Bind-libbind-devel-9.3.3-7.el5
Bind-utils-9.3.3-7.el5
Bind-devel-9.3.3-7.el5
Caching-nameserver-9.3.3-7.el5
Bind-sdb-9.3.3-7.el5
Root@www.linuxidc.com ~ #
If not, install these packages.
 
 
2. Configure the forward and reverse dns resolution files
Root@www.linuxidc.com ~ # Cd/var/named/chroot/etc/
[Root@www.linuxidc.com etc] # ll
Total 24
-Rw-r -- 1 root 165 Apr 29 localtime
-Rw-r ----- 1 root named 1100 Jan 17 2007 named. caching-nameserver.conf
-Rw-r ----- 1 root named 614 Apr 30 named. rfc1912.zones
-Rw-r -- 1 root named 113 Apr 29 rndc. key
[Root@www.linuxidc.com etc] # cp-p named-caching-nameserver.conf naemed. conf
[Root@www.linuxidc.com etc] # vi named. rfc1912.zones
 
// Named. rfc1912.zones:
//
// Provided by Red Hat caching-nameserver package
//
// Isc bind named zone configuration for zones recommended
// RFC 1912 section 4.1: localhost TLDs and address zones
//
// See/usr/share/doc/bind */sample/for example named configuration files.
//
Zone "." IN {
Type hint;
File "named. ca ";
};
 
Zone "linuxidc.com" IN {
Type master;
File "linuxidc.com. zone ";
Allow-update {none ;};
};
 
 
Zone "1.168.192.in-addr. arpa" IN {
Type master;
File "linuxidc.com. local ";
Allow-update {none ;};
 
};
[Root@www.linuxidc.com etc] # vi named. conf
//
// Named. caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver package to configure
// Isc bind named (8) DNS server as a caching only nameserver
// (As a localhost DNS resolver only ).
//
// See/usr/share/doc/bind */sample/for example named configuration files.
//
// Do not edit this file-use system-config-bind or an editor
// To create named. conf-edits to this file will be lost on
// Caching-nameserver package upgrade.
//
Options {
Listen-on port 53 {any ;};
Listen-on-v6 port 53 {: 1 ;};
Directory "/var/named ";
Dump-file "/var/named/data/cache_dump.db ";
Statistics-file "/var/named/data/named_stats.txt ";
Memstatistics-file "/var/named/data/named_mem_stats.txt ";
Query-source port 53;
Query-source-v6 port 53;
Allow-query {any ;};
};
Logging {
Channel default_debug {
File "data/named. run ";
Severity dynamic;
};
};
View localhost_resolver {
Match-clients {any ;};
Match-destinations {any ;};
Recursion yes;
Include "/etc/named. rfc1912.zones ";
};
# Yellow indicates the modified part
 
[Root@www.linuxidc.com etc] #
[Root@www.linuxidc.com etc] # cd/var/named/chroot/var/named/
Check ll as follows:
Drwxrwx --- 2 named 4096 Apr 30 data
-Rw-r ----- 1 root named 198 Jan 17 2007 localdomain. zone
-Rw-r ----- 1 root named 195 Jan 17 2007 localhost. zone
-Rw-r ----- 1 root named 427 Jan 17 2007 named. broadcast
-Rw-r ----- 1 root named 2518 Jan 17 2007 named. ca
-Rw-r ----- 1 root named 424 Jan 17 2007 named. ip6.local
-Rw-r ----- 1 root named 426 Jan 17 2007 named. local
-Rw-r ----- 1 root named 427 Jan 17 2007 named. zero
Drwxrwx --- 2 named 4096 Jul 27 2004 slaves
[Root@www.linuxidc.com named] # cp-p localdomain. zone linuxidc.com. zone (Be sure to add the-p parameter; otherwise, an error will occur later .)
[Root@www.linuxidc.com named] # cp-p named. local linuxidc.com. local
[Root@www.linuxidc.com named] # vi linuxidc.com. local
$ TTL 86400
@ In soa linuxidc.com. root.linuxidc.com .(
1997022700; Serial
28800; Refresh
14400; Retry
3600000; Expire
86400); Minimum
In ns linuxidc.com.
108 in ptr www.linuxidc.com.
108 in ptr mail.linuxidc.com. (reverse emails are optional .)
 
Forward file:
[Root@www.linuxidc.com named] # vi linuxidc.com. zone
$ TTL 86400
@ In soa linuxidc.com. root (
42; serial (d. adams)
3 H; refresh
15 M; retry
1 W; expiry
1D); minimum
In ns linuxidc.com.
In mx 10 mail.linuxidc.com.
Www in a 192.168.1.108
Mail in a 192.168.1.108
 
Add your own domain name ip address in/etc/resolv. conf
Nameserver 192.168.1.108
 
Iii. Start the DNS Service
[Root@www.linuxidc.com named] # service named restart
Stopping named: [OK]
Starting named: [OK]
[Root@www.linuxidc.com named] #
Iv. Test
Nslookup! (ALL tests passed)